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Finding the Fourth Proportional to 388,809,560.93, 583,214,902.70 and 158,778,645.58

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Solution

The fourth proportional to 388,809,560.93, 583,214,902.70 and 158,778,645.58 is: 238,168,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,809,560.93 : 583,214,902.70 = 158,778,645.58 : x
  2. Step 2: Convert to fraction form
    388,809,560.93/583,214,902.70 = 158,778,645.58/x
  3. Step 3: Cross multiply
    388,809,560.93x = 583,214,902.70 × 158,778,645.58
  4. Step 4: Simplify right side
    388,809,560.93x = 92,602,072,329,067,520
  5. Step 5: Solve for x
    x = 92,602,072,329,067,520/388,809,560.93
  6. Step 6: Final answer
    x = 238,168,197.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.